Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Sara Louise Mattson, AU.D., CCC-A

Audiologist in Rancho Santa Fe, CA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1770776395

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Registry record

Entity type Individual (Type 1)

Name Sara Louise Mattson

Credential AU.D., CCC-A

Sex Female

Practice address Rancho Santa Fe, CA, 92067

Phone (858) 759-8922

Fax (858) 759-8022

Enumeration date Aug 27, 2007

Last updated in NPPES Sep 16, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License AU 2370 (CA) Primary

AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Sara Mattson?

Sara Mattson is registered in NPPES with the primary taxonomy of Audiologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-16.